<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>粗体和斜体</title>
</head>
<body>
    <P style="font-size: 100% font-weight;">粗体</P>
    <!--font-weight/字体加粗属性-->
    <!--400等于normal/正常粗细-->
    <!--700等于加粗bold-->
    <p style="font-style:italic">斜体</p>
    <!--font-style/字体斜体属性-->
    <!---->
</body>
</html>